The effect of percent of micro silica on the rheological properties ofPBDMS/Silica micro composite gels and its compatibility with rheologicalmodels

PBDMS represents a form of synthetic substance, generated through the interaction between PDMSand boric acid, or its related compounds. In this study, the rheological behavior of this hardening gelin cutting, which is strengthened by adding hydrophilic micro-silica, has been investigated at lowshear rates (used for cold molding). In this study, to numerically investigate the rheological behaviorof Powerlaw, Bingham, Herschel-Bulkley, Casson and Newton models are used. The obtained resultsshow that the behavior of all the samples follow the Power-law model and that the rheologicalbehavior does not change with the addition of particles. And only the critical point (entering the nonlineararea) and the amount of resistance against flowability have changed in them

کلیدواژه ها:

Poly Borodimethyl Siloxane (PBDMS) ، Rheological models ، Ambient temperature ، micro composite.